Certified Ophthalmic Assistant Practice Exam

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Study for the Certified Ophthalmic Assistant Exam. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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The distance from the cornea to the back surface of the spectacle lens is the

apex distance
lens distance
vertex distance
optic distance

The correct answer is: vertex distance

The distance from the cornea to the back surface of the spectacle lens is referred to as the vertex distance. This distance is important to consider when prescribing corrective lenses to ensure proper vision correction for the patient. Options A, B, and D are not the correct terms used to describe the distance from the cornea to the back surface of the spectacle lens. The apex distance typically refers to the distance from the back surface of a lens to the apex of the cornea. The lens distance is a vague term and not commonly used in ophthalmic practice. The optic distance typically refers to the distance from the front surface of the cornea to the fovea in the retina.